Electric toothbrush



FIG. 1 is a front perspective view of an electric toothbrush showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a front perspective view thereof, showing a base to provide example environment.

The dashed broken lines in the drawings represent environment and portions of the electric toothbrush that form no part of the claimed design. 

CLAIM The ornamental design for an electric toothbrush, as shown and described. 